A barefoot photo of Elon Musk was immediately uploaded to wikiFeet, where the billionaire CEO has only a 2.7 rating

• Richard Branson posted a photo of him and a barefoot Elon Musk ahead of his Virgin Galactic flight.
• The photo was immediately uploaded to Musk's wikiFeet page, where he has a rating for 2.65 out of 5.
• Branson and Musk's chief space rival, Jeff Bezos, both have higher ratings.

Elon Musk may have $4, but his feet? Not exactly.

The billionaire Tesla and SpaceX CEO posed barefoot in a photo with Virgin Galactic's Richard Branson on Sunday, hours before $4.

"Great to start the morning with a friend," Branson tweeted, accompanied by the picture of him and Musk in Branson's kitchen at what $4.

-Richard Branson (@richardbranson) $4

But while Branson posted the innocent snap in anticipation of his "big day ahead" - $4 that initially $4 in early trading - it immediately found a second home on wikiFeet, the website dedicated to troves of photos of celebrities' feet.

There, 13 photos of Musk's feet have been uploaded in the last 2.5 months, and users have submitted rankings on his lower extremities.

-Rational Disconnect (@RationalDis) $4

Unfortunately for Musk, his feet have received low marks: Musk's rating is currently a 2.65 out of 5.

(Branson, meanwhile, has a respectable 3.33 rating, and Musk's $4, Jeff Bezos, is besting him with a rating of 3.26.)

Still, it's unlikely Musk minds all that much. He's currently $4, making him the world's second-richest person, and he may soon be heading to space himself: Branson told The Sunday Times in an interview that $4 for a seat on a future Virgin Galactic trip.